TY - JOUR
T1 - Chemical-Stabilized Aldehyde-Tuned Hydrogen-Bonded Organic Frameworks for Long-Cycle and High-Rate Sodium-Ion Organic Batteries
AU - Guo, Chaofei
AU - Gao, Yun
AU - Li, Shang-Qi
AU - Wang, Yuxuan
AU - Yang, Xue-Juan
AU - Zhi, Chuanwei
AU - Zhang, Hang
AU - Zhu, Yan-Fang
AU - Chen, Shuangqiang
AU - Chou, Shu-Lei
AU - Dou, Shi-Xue
AU - Xiao, Yao
AU - Luo, Xiping
PY - 2024/5
Y1 - 2024/5
N2 - Hydrogen-bonded organic frameworks (HOFs) are considered as potential choice for future energy storage systems due to their adjustable chemistry, environment friendliness, and cost-effectiveness. In this study, structurally stabilized and aldehyde-tuned hydrogen-bonded organic frameworks (HOFs-8) are designed and prepared to contain arrayed electronegative sites for sodium-ion storage. Benefitting from the flexible hydrogen bond and unique structural symmetry, HOFs-8 can achieve efficient utilization of the active sites and fast transport of sodium ions and electrons. The HOFs-8 electrode exhibits an impressive lifespan of 5000 cycles at 3.66 A g−1 (20 C). In situ Fourier Transform infrared spectroscopy (in situ FT-IR) and ex situ X-ray Photoelectron Spectroscopy (ex situ XPS) analyses are performed to illustrate the mechanism of sodium-ion storage involving aldehyde-tuned C═O. Additionally, flexible hydrogen bonds in HOFs materials with unique structural symmetries are investigated to elucidate the mechanism of hydrogen bonding for improving their electrochemical properties. Density functional theory (DFT) simulations verified that HOFs-8 has excellent Na+ diffusion kinetics, enabling it to demonstrate outstanding rate capability. This work offers insight into the design of new electrodes and improved HOFs, which are expected to have tremendous potential in energy storage systems. © 2024 Wiley-VCH GmbH.
AB - Hydrogen-bonded organic frameworks (HOFs) are considered as potential choice for future energy storage systems due to their adjustable chemistry, environment friendliness, and cost-effectiveness. In this study, structurally stabilized and aldehyde-tuned hydrogen-bonded organic frameworks (HOFs-8) are designed and prepared to contain arrayed electronegative sites for sodium-ion storage. Benefitting from the flexible hydrogen bond and unique structural symmetry, HOFs-8 can achieve efficient utilization of the active sites and fast transport of sodium ions and electrons. The HOFs-8 electrode exhibits an impressive lifespan of 5000 cycles at 3.66 A g−1 (20 C). In situ Fourier Transform infrared spectroscopy (in situ FT-IR) and ex situ X-ray Photoelectron Spectroscopy (ex situ XPS) analyses are performed to illustrate the mechanism of sodium-ion storage involving aldehyde-tuned C═O. Additionally, flexible hydrogen bonds in HOFs materials with unique structural symmetries are investigated to elucidate the mechanism of hydrogen bonding for improving their electrochemical properties. Density functional theory (DFT) simulations verified that HOFs-8 has excellent Na+ diffusion kinetics, enabling it to demonstrate outstanding rate capability. This work offers insight into the design of new electrodes and improved HOFs, which are expected to have tremendous potential in energy storage systems. © 2024 Wiley-VCH GmbH.
KW - aldehyde-tuned
KW - chemical stability
KW - high-rate
KW - hydrogen-bonded organic frameworks
KW - sodium-ion organic batteries
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U2 - 10.1002/adfm.202314851
DO - 10.1002/adfm.202314851
M3 - RGC 21 - Publication in refereed journal
SN - 1616-301X
VL - 34
JO - Advanced Functional Materials
JF - Advanced Functional Materials
IS - 21
M1 - 2314851
ER -
